Radiator construction



H. c. HARRISON.

RADIATOR CONSTRUCTION.

APPLICATION FILED OCT. 20, I915.

1 ,3 1 4,263 Patented Aug. 26, 1919.

UNITED STATES PATENT OFFICE.

HERBERT CHAMPION HARRISON, .OF LOCKPORT, NEW YORK.

RADIATOR CONSTRUCTION.

Original application filed December'il,

To all whom it may concern.-

Be it known that I, HERBERT C. HARRISON, a subject of the King of GreatBritain, residing at Lockport, in the county of Niagara and State of NewYork, have invented certain new and useful Improvements in RadiatorConstructions; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and usethesame.

This invention relates to radiator constructions and has for its objectto provide a simple and more efficient radiator which may be made inaccordance with the construction disclosed in my copending application,filed Dec. 11, 1914, Serial No. 876,687, entitled Process of makingradiator cores, and now Patent #1120744, dated March 27, 1917, of whichthis is a division.

-With these and otherobjects in view, the invention consists in thenovel combinations of parts and details of construction more form of myinvention showin the construc-' tion and assemblage of the pl atesconstituting a radiator unit;

Fig. 3 is a sectional view showing in detail the constructionof one formof division plate used in my radiator units;

Fig. 4 is a view similar to Fig. 2 illustrating another form of divisionplate and of radiator units;

Fig. 5 is an edge view looking down upon a still further modified formof division plate;

Fig. 6 is a view similar to Fig. 5 showing a further modified form ofouter plates for radiator units;

Fig. 7 shows the division plate of Fig. 5 in section and theouter plateof Fig. 6 brought in contact therewith.

Fig. 8 shows the parts of a radiator unit assembled when said parts areof the forms shown in Figs. 5 and 6;

Specification of Letters Patent.

Patented Aug. 26, 1919.

1914, Serial No. 876,687. Divided and this application filed October 20,1915. Serial No. 56,915.

Fig. 9 is a diagrammatic plan View showing the offset edges of the outerplates of sev eral un1ts to form a water passage.

Fig. 10 is an edge view partly in section of a still further modifiedformv of division plate; and Fig. 11 is a perspective view of anotherform of division means suitable for separating the unit plates.

My invention is applicable to radiators havlng a variety of differentlyshapedor formed air cells, and in theabove drawings,

I have shown by way of example three of such forms of cells, but ofcourse it is to be understood that other forms may be readily devisedand still come withinthe limits of my invention. Feferrmg to theaccompanying drawings, 1 lndlcates the usual radiator frame inclosingthe water space 2 at the top and the space 3 at'the bottom from whichwater is delivered. Between the spaces 2 and 3 is located the nest ofair cells 4. The cubic space available in modern. automobiles for theaccommodation of radiators is exceedingly limited so that the coolingefiiciency of the radiator must be high if satisfaction is to be had.Further, competition is severe from a commercial point of view, andtherefore the manufacture is met with the exacting conditions of makinga highly efficient and a comparatively inexpensive radiator, as well aslnclosing it in a very incon-f venient space.

Referring to my Patent No. 1,076,115, I disclose a radiator unitcomposed of the division plate lettered 8 in said patent and of the sideplates there lettered 1 and 5.

Water passages lettered 22 in the patent pass down between the radiatorunits thus formed and the water thus imparts heat to the air in thedouble row of opposed cells formed by the said plates 1, 5 and '8. Thisconstruction it will be observed comprises the use of very thin plates,with only a single thickness .of metal between the cooling air and thewater from which the heat is to be extracted and therefore a relativelyhigh efliciency of operation is attained. A somewhat similar structureand operation is adopted in the present invention in that a radiatorunit is formed in Fig. 2 -for example, from the division plate 6 and thetwo outer or side plates 8 and 9, while 10 represents one of the waterpassages located between each pair of units and extending from a littlepressure on the plate 20, or a slight into the spaces between the earsthere lettered 10, is a more or. less expensive operation, in that itmust be done by hand, and

in carrying out said operation, the side plates of the unit such asthose lettered 1 and 5 in the patent are apt to be bent out ofshape. Itresults from this that in the making of tenthousand radiators, forexample, not only 'is a great deal of time lost, but also a great dealof extra money 1s actually expended, both of which adds to the finalcost of the radiators. 1

In the present invention, on the other hand, I avoid these objections byprov1d1ng guiding inclined centering surfaces 12 on adivision plate suchas 6, as will be clear from Figs. 2 and 3, so that when a projectingangle such. as 13 in the process Ofassemybling strikes between .a pairof guide surfaces 12, it will upon pressing the plates 6, 8 and 9together, cause all three plates to be accurately centered.

This assembling feature of my invention is very important and in orderto render it more clear the modified. form of construction illustratedin Figs. 5, 6, 7 and 8, and the method of assembling the parts will nowbe disclosed. In Fig. 5, a division plate 20 provided with the inclinedguiding, or centering surfaces 21, 26 and projecting angles or points;22 is shown, In Fig. 6, is

shown an outer plate 23 of a radiator unit,

which may be substantially the same as the outer plates in my PatentNumber 1,076,115 above mentioned. Now as the outer plate .23, comes fromthe machine it may be supported in any suitable manner and the divvisionplate 20 thrust against it either by hand or by a machine as said plateis delivered from the apparatus which is making it. A convenient way toaccomplish the asseniblage of the two plates is to merely lay the outerplate 23 flaton its side and feed or drop the plate 20on top of it. Thenowing to the centering surfaces 21, of the plate 20, no matter where thefins 24 of the plate 23 may contact'with the surfaces 21,

clamp-ing action between the two plates will cause them to becomeaccurately centered as shown in Fig. 7 and the heretofore loss of 1 timeand money avoided.

Havi centered the plates 20 and, 23, it is only necessary to drop asecond outside plate;

thus, automatically, soto speak;

such as 25 011 top of or press said plate 25 against the other side ofsaid division plate 20 whereupon the three plates 20, 23 and 25 I willbe automatically centered as indicated in Fig. 8.

It will thus be seen that by the simple expedient of providing thedivision plate 20,

with the oppositely projecting centering surfaces 21' and-26, and byproviding the outer plates 23 and 25' with the projecting fins 24 and 27respectively, it is only necessary to lay the plate 20 on top of theplate 23, to then lay the plate 25 on top of the plate 20, andto then.press the parts together in; order to cause all three plates to becomeaccurately centered for the forma 7 tion of a radiator unit.

These units I'have designated in Fig. 9 by the numeral 30, and when theyare placed,

together they form, the water passages 10 by reason of the fact that theouter plates such as 23 and 25 have their extreme edges.

offset as indicated at 31 in Fig. 9, and these ofi'set edges abut toform the said water passages, while the extreme. top ends or edges ofthe plates 23, and 25 are folded over toward each other to close thespace above the double row of opposing cells 5 as will be readilyunderstood. V

When a plurality of radiator, units such as 30 are thus built up, theirindividual plates being automatically centered as above disclosed, thewhole set of units are clamped together by any convenient means,andtheir may be laid upon its side, a division plate a such as 6 may beplaced thereon without regard to whether the parts match or not,whereupon the projecting angles 13 formed by the inclined sides .orcorrugations of the plate 8 will coact with the centering in; clinedsurfaces 12 of the division plate 6, to cause said division plate, tobecome accurately centered in relation to the plate 8. But beforewaiting for this centering action to take. place, another outer unitplate 9 may be placed on top of the division plate 6 whereupon a slightpressure and movement of the parts longitudinally will cause itsprojecting angles 13 to be guided by additional corrugations 12 and anac curate centering of the. three plates to take place, as is indicatedin Fig. 2.. Another outer plate such as35 may now be laid upon 1,s14,2as

no extra labor is required to center the plates such as 6, 8 and 9,etc., because the a conveniently formed by subjecting thin ribbons ofmetal to the action of suitable dies centering of the parts in each unittakes place automatically, after the plates are rought into contact.

The division plates such as 6 and 20 are which'cuts out and presses outon opposite "sides of their respective plates any suitable inclinedcenteringprojections such as 12 and 21, as will be clear from Figs. .3,5 and 10 of the drawings. The guiding projections 21 and 26 that areassociated with the division plate 20 are'pre'ferably located near theedges of the said division plate as will beclear from Fig. 10 of thedrawings.

'In the modified form of construction shown in Fig.4, the same processis carried out .and the parts'are of substantially the same constructibnas those just disclosed, but their form is varied in order to produceunobstructed hexagonal cells instead of cells of the shape disclosed, inthe other figures.

tering projections cause the said plate 41 to be automatically centered,and a second outer unit plate 43 is laid upon the division plate 41,whereupon the centering rojections' 44 cause said plate 43 to also ecen- 1 tered, and the radiator unit thus formed is associated with asimilar unit, whereupon the .ofisetedges such as 31 carried on theoutside of each outer plate causes the units to be separated from eachother and water passages such as-lO to be formed between the units. A.suflicient number of units are assembled, clamped together and theirofi'set .ends are dipped in solder in the manner disclosed abovewhereupon a complete nest of opposin cells is finished.

V It wil now be clear that in construction of sheet metal radiator unitsaving a doublerow of opposed air cells with a separating means, or asingle thickness of metal between them is applicable to a wide varietyof forms of cells; but thatin all cases it .in-

.volves the forming of a pair of outer radiator unit' plates eachprovided with opposed projections constituting cell walls extendmg fromthe inner side thereof such for example as the inclined walls 50 in Fig.2, the plaits or fins 24 in Fig. .7, and the inclined walls 51 in Fig.4.

Said construction further comprises the for testing); v

It will noticed that my radiator units oppositely disposed inclinedcentering proections are lettered 12 in Fig. 3, and lettered 21 and 26in Figs. 5 and 10, but, of

course other forms of centering projections could be employed ifdesired.

The construction also contemplates the bringing of the opposed orprojecting cell walls such as 50, 51 or 24, into contact with centeringprojections such as those disclosed, and thereupon, applying pressureand a movement lengthwise of the plates to cause the parts toautomatically find their final accurately centered positions. And theconstruction finally comprises the holding of the parts in said finalpositions while they are suitably secured together. Of course, aplurality of units in almost every instance must. be brou ht togetherwith suitable water passages tween them, and therefore the practicableconstruction for automobile radiators also involves the assemblage of aplurality of units, and the separation of said units to form the desiredWater passages before fixing the parts firmly in position. A convenientway of accomplishing this final step isby providing the offset edges 30on the outer unit plates, so that a plate 25 for example may contactwith a plate 23, during the continuous formation of a plurality ofunits, and thereby avoid stoping the process after each unit is assem-In fact, a convenient method of making a whole radiator. section is tomerely throw the various plates, such as 23, 20 and 25 in their propersequence into a box or jig of the roper dimensions, and when the propernum er of plates, have been assembled give them a few shakes and apply aclamping pressure whereupon the members of a whole radiator sectioncomprising a pluralit of units separated by water passages 'wil be foundto be accurately centered and ready to" have their edges immediatelydipped in solder and the sectionfithus finished read differ inconstruction from those disclosed in my former patent, among otherfeatures, in that the div sion plates such as 6, 20 and 41, are providedwith enlarged holes formed punching out their respective guide surfaces12, 21- and 42, so that air can freely circulate from-one row of cellsthrou h the division -plate .to the opposed row 0 cells.

Of course,these holes may be made as large.

as desired. Further, since coolin air is usually forced through thecells un er pressure, more or less of it strikes against the edges ofthese centering projections and is deflected against the outer cellwalls; it thereby comes more intimately into contact with the heatedsurfaces and cooling efiiciency is accordingly promoted.

It is obvious that thoseskilled. in the art may vary the details ofconstruction as well as the arrangement of parts, without departing fromthe spirit of the invention; for example it is obvious that thecentering projections on the division plate could be straight like theplaits 24, and. they would coact with inclined cell walls like and 51 tocenter the. parts. Therefore I do not wish to be limited to the abovedisclosure except as may be required by the claims.

,What I claim is 1. A radiator unit comprising a pair of I sheet metalouter plates having on one side thereof a set of opposed projectionsconstituting cell walls; and division means having centering projectionsadapted to separate said first named projections, one of' said sets ofprojections having associated stantially as described.

2. A radiator unit comprising a pair of outer sheet metal plates havingon one side thereof aset of opposed projections; and division meanshaving guiding inclined centering projections between which said firstnamed projections are adapted to be located, substantially as described.

3. A division plate for radiator units consisting of a sheet metal bodyportion having integral inclined guiding and centering pro 4. A radiatorsection composed of a plutherewith inclined guiding surfaces, subectionsextending from each side thereof,..

substantially as described.

rality of radiator units secured together and provided with separatingmeans to form water passages; each unit comprisinga pair of outerplates, each having on one side a set of inwardly extending projectionsto form cell walls, and a single division plate having a set ofcentering projections von each channels and connected in parallel toform spaced zig-zag water tubes, and aliningmeans located between thetubes and ex-' tending into the channels of the adjacent plates.

7. A radiator core comprising a plurality l of water tubes, and aplurality of radiating fins at least one of which is arranged be tweentwo adjacent water tubes, each of said tu bes having two walls eachof'which is constructed of a strip of corrugated metaland each of saidfins being constructed of a single corrugated strip of metal and each ofsaid fin strips being provided with centeringloops which project intothe concave sides of the corrugations of an adjacent strip. I intestimony whereof I afiix my signature.

HERBERT cninrior HARRISON.

